module Agroclimatology

# File lib/agroclimatology.rb, line 7
def self.fetch(lat, lon, year_start = 1983, year_end = DateTime.now.year)
  url = "http://power.larc.nasa.gov/cgi-bin/agro.cgi?&step=1"
  url << "&lat=#{lat.to_s}&lon=#{lon.to_s}"
  url << "&ms=1&ds=1&ys=#{year_start.to_s}"
  url << "&me=12&de=31&ye=#{year_end.to_s}"
  url << "&p=toa_dwn&p=swv_dwn&p=lwv_dwn&submit=Submit"

  response = HTTParty.get(url)
  if response.code == 200
    page_data = response.body.split("-END HEADER-").last
    data = []
    page_data.split("\n").each do |line|
      row = line.split(" ")
      unless row[0].to_s.empty?
        daily_record = {
          "year": row[0],
          "day_of_year": row[1],
          "rad_atmosphere": row[2],
          "rad_surface": row[3],
          "rad_flux": row[4]
        }
        data << daily_record
      end
    end
    return data
  else
    puts "Error: #{response.status}"
  end
end